Hardware for a fully-glazed door

ABSTRACT

A fitting for an all-glass door with an upper bearing which substantially includes a fitting body with a glass receptacle and/or a clamping device for a glass leaf and with a bearing pin for engagement in a counterbearing at an overpanel or in a frame. The bearing pin is displaceable in a pocket hole. To provide a fitting that resists intrusion after the glass door is installed, the bearing pin of the fitting is secured in such a way that the glass leaf is prevented from being lifted out when the all-glass door is closed.

PRIORITY CLAIM

This is a U.S. national stage of application No. PCT/EP2004/011857,filed on 20 Oct. 2004. Priority under 35 U.S.C. §119(a) and 35 U.S.C.§365(b) is claimed from German Application No. 203 16 238.2, filed 20Oct. 2003.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The invention is directed to a fitting, in particular for all-glassdoors, comprising an upper fitting having a fitting body with a clampingdevice for the glass leaf and with a bearing pin for engaging in acounterbearing at the transom or overpanel.

2. Description of the Related Art

Fittings of the type mentioned above are sufficiently well known.However, the fittings of the upper counterbearing which is supported atan overpanel above the glass leaf of the glass door are generallyoriented transverse to the vertical axis of the glass door. DE 299 24319 U1 discloses a fitting of this type for the rotatable bearingsupport of a door leaf at a frame construction. In this case, a fittingis arranged at the top and bottom of the door leaf, respectively, andcooperates with a complementary counter-fitting at a frame construction.The fitting is characterized in that a bearing axis extends in the planeof the door leaf and in that the fitting is fastened in a complementaryrecess of the door leaf. At the same time, the fitting is dividedlongitudinally by an intermediate space into fitting parts which arespaced apart at least partially so as to form opposite stop faces. Theglass pane is fastened by screw members which engage in the fitting fromone side. The upper fitting has a nonadjustable bearing pin.

DE 89 105 69.9 U1 discloses an upper bearing element which has a bearingpin that is displaceable in longitudinal direction of the door (verticalaxis). This bearing pin is held by a screw that is arranged orthogonalto the bearing pin and can be adjusted in height by loosening thisbearing screw. For this purpose, an elongated hole is provided in thefitting part. The bearing pin penetrates into a pocket hole so that whenthe door is being installed the bearing pin disappears into the pockethole and, after installing the door, the bearing pin is pressed out ofthe bearing and penetrates into the counterbearing located at theoverpanel. A construction of this kind facilitates mounting of the glassdoor.

DE 298 13 219 U1 discloses a fitting for an all-glass leaf whose bottomfitting parts are terminated by caps.

It is the object of the present invention to provide a fitting which isresistant to break-in after the glass door is installed.

SUMMARY OF THE INVENTION

This object is met by the inventive upper fitting being provided withlift-out protection by means of a fitting arrangement. The lift-outprotection acts in an outwardly inconspicuous manner because it isarranged below the fitting body, or a clamping device, that isterminated by cover caps.

According to an advantageous further development, the bearing pin isfastened to the fitting body and/or to the clamping device for theall-glass leaf by at least one fastening screw. The fastening screwpenetrates into or through the bearing pin orthogonal to the center axisof the bearing pin. The fastening screw is inserted into an elongatedhole inside the fitting body and/or the clamping device so that thebearing pin is displaceable in direction of the vertical axis. Thethread of the fastening screw penetrates into a threaded bore holewithin the bearing pin. By tightening the fastening screw when thebearing pin is moved out, this bearing pin is connected to the fittingbody and/or to the clamping device in a frictional and positiveengagement.

Due to the fact that the bearing pin is located inside a pocket hole, itis possible to introduce another screw element below the moved outbearing pin, which other screw element likewise penetrates the fittingbody and/or the clamping device orthogonal to the center axis of thebearing pin. It is not possible to disassemble the installed all-glassleaf when the door is closed because of the arrangement of the safetyscrew, namely, because the safety screw is arranged so as to be offsetby 180° relative to the fastening screw. This can only be done when thesafety screw is unscrewed or loosened on one side of the all-glass doorand the fastening screw is unscrewed or loosened on the opposite side.However, this means that the fitting and/or the clamping device must beaccessible from both sides of the door leaf.

If only the safety screw were removed after removing the cover on oneside of the all-glass door, the bearing pin could not be lowered byreason of the design because the fastening screw holds the bearing pinin its position even when the safety screw is removed. This is due tothe fact that the fastening screw, which is offset by 180° relative tothe safety screw, is accessible within the space in this case. Not untilthe all-glass door is opened can the fastening screw also be loosened sothat the bearing pin can penetrate into the fitting body and/or into theclamping device. However, this is only possible when the safety screwhas been completely removed. When the safety screw is removed, the lowerpart of the pocket hole in which the bearing pin penetrates is released.

If, on the other hand, a person only loosens the fastening screw, thebearing bolt cannot penetrate down into the pocket hole because of thesafety screw that is screwed in on the opposite side.

It is clear that such an arrangement of the safety screw and fasteningscrew of the bearing pin results in a simple yet effective securing ofthe bearing pin. Adjustability is not impaired by the safety screw whenusing the glass door. In this regard, it does not matter how the fittingis constructed.

Further details, features and advantages of the invention are indicatedin the following description of a preferred embodiment example withreference to the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows an upper fitting with lift-out protection;

FIG. 2 shows an upper fitting according to FIG. 1 with the bearing pinmoved in;

FIG. 3 shows an upper fitting according to FIG. 1 with the fasteningscrew removed.

DETAILED DESCRIPTION OF THE PRESENTLY PREFERRED EMBODIMENTS

FIG. 1 shows an upper fitting that is used for all-glass doors with aglass leaf. Since the invention is only concerned with the upper area ofa fitting that is constructed in different ways and since only thelift-out protection is referred to, all other parts not relevant to theinvention have been omitted.

The upper fitting 3 substantially comprises a fitting body 4 which has aglass receptacle 21 for the glass leaf of the all-glass door. Located atthe upper area of the fitting body 4 is a pocket hole 53 into which abearing pin 7 of an upper bearing in an overpanel or the likepenetrates, this bearing pin 7 being constructed so as to bedisplaceable. The fitting body 4 is bounded laterally by clampinginserts 25 (clamping plates). The clamping inserts 25 are covered bycover panels 26. When the cover panels 26 are removed, as is illustratedin FIGS. 2 and 3, two screw elements within the upper fitting 3, namely,a holding screw 50 and a safety screw 48, are accessible. The holdingscrew 50 is fitted with its head in an elongated hole 47 oriented inaxial direction and with its thread in an internal thread 51 arranged inthe bearing pin 7. When the bearing pin 7 is moved out (see FIG. 1), theholding screw 50 is tightened so that a frictional positive engagementoccurs between the bearings pin 7 and the upper fitting 3.

Directly below the end of the bearing pin 7 which penetrates into thepocket hole 53 is a safety screw 48 orthogonal to the longitudinal axisof the fitting. The safety screw 48 penetrates the pocket hole 53. Thelength of the safety screw 48 is adapted to the thickness of the fittingbody and clamping inserts. However, the safety screw 48 is arranged soas to be offset by 180° relative to the holding screw 50. This meansthat when a door leaf is closed, e.g., the safety screw 48 lies outsideof the space and the holding screw 50 is located inside the space.Therefore, when a door is closed no one may simultaneously unscrew bothscrews, namely, the safety screw 48 and the holding screw 50, in orderto lower the bearing pin 7 into the pocket hole 53 so as to remove thedoor leaf from its working position.

In FIG. 2, the safety screw 48 which was screwed into an internal thread55 of the clamping insert 25 has been removed. It is clear thatloosening the holding screw 50 can cause the bearing pin 7 to be loweredonly when the safety screw 48 has been removed beforehand. This is shownin FIG. 2.

FIG. 3 shows the situation in which the holding screw 50 is removed fromthe bearing pin 7 while the inserted safety screw 48 is present in thethread 55 at the same time.

As can be seen from the embodiment example in FIGS. 1 to 3, a door isalso operable compared to the cited prior art according to DE 89 10560.9 U1 when the holding screw 50 is removed since the bearing pin 7cannot be pushed out of the upper bearing because of the safety screw48. Due to the fact that the safety screw 48 is offset by 180° relativeto the holding screw 50 when the upper fitting 3 is viewed from the top,the entire all-glass door is also protected from being lifted out at thesame time.

1. A fitting for a glass door, the fitting comprising: a fitting bodyhaving a receptacle for a glass leaf and a pocket hole having an axis; abearing pin received in the pocket hole, the bearing pin being movablebetween an extended position, where the bearing pin can engage in acounterbearing of a door frame, and an unextended position, where thebearing pin is substantially within the pocket hole; a holding screwreceived in the fitting body and engaging the holding pin; and a safetyscrew received in said fitting body transversely of said axis andthrough said pocket hole when said pin is in said extended position,said safety screw preventing said bearing pin from moving from saidextended position to said unextended position, wherein said holdingscrew and said safety screw have respective heads which are accessedfrom opposite sides of said fitting body.
 2. The fitting of claim 1wherein the holding screw is received in said bearing pin orthogonallyof said axis.
 3. The fitting of claim 1 wherein said holding screw isthreaded into said bearing pin.
 4. The fitting of claim 1 wherein thesafety screw extends through said pocket hole adjacent to said bearingpin when said bearing pin is in said extended position, and therebyprevents said bearing pin from moving to said unextended position whensaid holding screw is removed.
 5. The fitting of claim 1 furthercomprising clamping plates arranged on opposite sides of said fittingbody.
 6. The fitting of claim 5 wherein said safety screw is threaded inone of said clamping plates.
 7. The fitting of claim 6 wherein the otherof said clamping plates has an elongated hole oriented parallel to saidaxis and receiving said holding screw therethrough, said elongated holepermitting said bearing pin to move from said extended to saidunextended position when said holding screw is loosened and said safetyscrew is removed.
 8. A fitting for a glass door, the fitting comprising:a fitting body having a receptacle for a glass leaf and a pocket holehaving an axis; a bearing pin received in the pocket hole, the bearingpin being movable between an extended position, where the bearing pincan engage in a counterbearing of a door frame, and an unextendedposition, where the bearing pin is substantially within the pocket hole;a holding screw received in the fitting body and engaging the holdingpin; a safety screw received in said fitting body transversely of saidaxis and through said pocket hole when said pin is in said extendedposition, said safety screw preventing said bearing pin from moving fromsaid extended position to said unextended position; and clamping platesarranged on opposite sides of said fitting body, wherein said safetyscrew is threaded in one of said clamping plates.
 9. The fitting ofclaim 8 wherein the holding screw is received in said bearing pinorthogonally of said axis.
 10. The fitting of claim 8 wherein saidholding screw is threaded into said bearing pin.
 11. The fitting ofclaim 8 wherein the safety screw extends through said pocket holeadjacent to said bearing pin when said bearing pin is in said extendedposition, and thereby prevents said bearing pin from moving to saidunextended position when said holding screw is removed.
 12. The fittingof claim 8 wherein said holding screw and said safety screw haverespective heads which are accessed from opposite sides of said fittingbody.
 13. The fitting of claim 8 wherein the other of said clampingplates has an elongated hole oriented parallel to said axis andreceiving said holding screw therethrough, said elongated holepermitting said bearing pin to move from said extended position to saidunextended position when said holding screw is loosened and said safetyscrew is removed.